131310437 has 2 divisors, whose sum is σ = 131310438. Its totient is φ = 131310436.

The previous prime is 131310391. The next prime is 131310461. The reversal of 131310437 is 734013131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103103716 + 28206721 = 10154^2 + 5311^2 .

It is a cyclic number.

It is not a de Polignac number, because 131310437 - 2¹⁰ = 131309413 is a prime.

It is a super-3 number, since 3×131310437³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131310497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65655218 + 65655219.

It is an arithmetic number, because the mean of its divisors is an integer number (65655219).

Almost surely, 2^131310437 is an apocalyptic number.

It is an amenable number.

131310437 is a deficient number, since it is larger than the sum of its proper divisors (1).

131310437 is an equidigital number, since it uses as much as digits as its factorization.

131310437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 131310437 is about 11459.0766207404. The cubic root of 131310437 is about 508.2761701794.

Adding to 131310437 its reverse (734013131), we get a palindrome (865323568).

The spelling of 131310437 in words is "one hundred thirty-one million, three hundred ten thousand, four hundred thirty-seven".